Draft-equalizer.



PATENTED 001?. 15, 1907.

UNIT ED OFFICE.

EGBERT O. DOAK, OF CEDAR RAPIDS, IOWA, ASSIGNOR TO WILLIAMT. JONES, OF CEDAR RAPIDS, IOWA.

\ DRAFT-EQUALIZER.

N 0. 868,601. Specification of Letters Patent. Patented. Oct. 15, 1907. Application filed June 27,1906x Serial No. 323,710.

To all whom it may eoncam: evener, but alternately with the swingletrees at the Be it known that l, lionnn'r O. Doin a citizen of the short end. The other ends of the latter swingletrees United States, residi [1g at Cedar Rapids, in the county connect with tugs Q, which extend as far forward as the of Linn and State oi .lowa, have invented certain new front pair of swingletrecs, and are provided with suit- 5 and useful Improvements in Draft Apparatus, of which able hooks to take the harness tugs of the outer lead the following is a specification. horses.

This invention relates to draft apparatus such as is The manner of connecting eight horses is so obvious employed more especially in the operation. of roadas to require no description. graders, dirt elevators, and the like, where a large num- When it is desired to use but four horses, the links N her of horses are required, and where it is desirable are shifted to central holes It in the eveners, and the that seine of the lead-horses be so connected with the front whif'l'letrees and extension tugs are detached. tongue of the implement to aid in guiding it. The The equalizing levers then pull back against the stirnature of the device is, however, such that it may be ra s, and form a rigid evener.

used with four, six, or eight horses the changes necessary For six horses, the three-horse evencrs are reversed,

for such different numbers bein easil and uickl and the front whilfletrees dis )ensed with but the exmade. tension tugs are retained, the leaders attached to them,

in the accom )anvin drawirr forming a )art oi this in this case takin the osition of those hitched to the a 37 DJ D S])((Jlli('=.lill()ll, Figure 1| 1s a plan view ol the apparatus front whitiletrees when eight horses are used. as arranged for eight horses. Fig. 2 is a fragmentary By this construction a light pair of whillletrees serves rear view of the fourhorse evcner, showing the conin front for the proper guidance of the tongue, which in struetion of the equalizing lever to which the other the case of mad-graders and the like is commonly alcveners are connected. Fig. 3 is a fragmentary side lowed to drag, and the heavy and cumbrous four-horse view, showing the connection of the central draft-rod evener and whillletrees usually employed is dispensed with the tongue. Fig. t is an end view of one oi the with 20 rear \ihlllletiets, and shows the manner of connectmg Havmg thus dcscnbed my mventlon What 1 01mm swmghmws the who 01 and 192m i as new, and desire to secure by Letters Patent, is; l y- 1. In draft apparatus, the combination of an evener-bar, To a strong evener iS pivoted at B a pair 0i equala pair of lovers pivoted thereto, limiting stirrups therefor, i l C [[110 i b i 1 h ff a central dral'lt rod connecting with the longer, inner arms of the lovers. :1 pair of t'hreehorse evencrs connectin with ar i EXI'. 1 i rs"2lma s f 1 f LU]; t h'vub l the outer arms oi the levers, a swinglciree attached to the tlwnml'wnnl bzwkWm-d Swing y Stu-raps longer arm of each three-horse evener. and a pair of swin- The longer arms of each lever connect by chains E with eletrees to the shin-re a central draft-rod i running over the tongue G and much Sam Swine 1 l as. under a sheave ll attached thereto. To the trout end oi L E V v i. In dralt; apparatus, the combination with a vehicle thlsdralt-rod is conneeied a pan of ordinarywhillletrces 1011mm an Menu, a levers pivoted thereto 1. Asshown in Fig. Zlhe inner endsoi these lovers are flll'QO-llOl'SO whiIIh ,es attached to the shorter arms of thrown up f th (owner, so th t t1 d -mt, d h i said levers, a central draft-rod Ilcxibly connected with the y run free The ends of the same lovers um longer arms of said levers, and a sheave and stirrup to v I serve as a guide for said rod. delnossmli not lgf uusjmlg on L16 3;. In draft apparatus, the combination ol :1 central 40 owner, and are provided With auxiliary bars J 10 till) i draft-rod, an evener, a pair of lovers pivoted to said evener, the pivot-bolt K, and securely attached to 1,1 min i and provided with auxiliary bars to take the opposite sides levvrs 1t L A glnce Mock M allows [Orthc couplino. of the evener, links connecting with the short arms of said L H x t t levers, and three-horse whilllctrecs connecting with said the link h between the ends ol the two parts oi the U'Ill of each, and extension tugs to etirees to the harness tugs of the lin lever. This link connects with it three-hor even)? testimony whereof I ailix my signature in presence of O, at one third its length, as shown. To this evener two Witnesses are attached three swi 1 Igletrees P, one at the longer end, EGBERT 0, K, and one at each side of the shorter end, as shown in Witnesses, Fig. 1'. The wheel horses connect directly, and in the J, a $12 JOHN,

usual way, with swingletrces at the long end of the A: 51'. JOHN. 

